CD16/56
Test Code
NKMK
Description
Collect
Draw one green top (sodium or lithium heparin) or lavender top (EDTA) vacutainer tube.
Yellow top (ACD soln A or B )tubes are also acceptable but tube must be appropriately filled (because of liquid anticoagulant) to preserve sample integrity.
Pediatric Collection
Minimum volume: 1 mL blood
Unacceptable Conditions
Frozen, clotted, hemolyzed, spun down, citrate anticoagulant (blue top)
Storage Transport Temp
Maintain and transport specimens at room temperature (18-22°C).
Ship specimens Priority Overnight via Fed Ex in container sufficiently insulated to avoid temperature extremes (<10°C and >37°C).
Stability
48 hours at room temperature (18-22°C).
Notes
CBC with Differential results from within 3 days of draw must also be provided or a lavender top included with required specimen to run CBC at ADx.
Samples are accepted Monday through noon on Friday.
**This is NOT an NK Cell Function assay**.
Performed
Tue-Fri
Methodology
Flow Cytometry
Turnaround Time
2-4 days
Department
Immunology Lab - Phenotyping Assays
Synonyms
Natural Killer Cell (CD16/56);CD16/56 Cells;Natural Killer Cell Marker;Flow Cytometry (CD16/56);NK Cell enumeration;NK Marker (CD16/56)
Study Offerings
RUO
CAP/CLIA
Related Tests
Reference Interval
Lymphocyte Subset Normal Range Chart
Interpretation
This test is useful for assessing NK (natural killer) cell percentages and numbers and it assists in the evaluation of immunodeficiency.
CPT Code
86357
New York Approved
No: Run with Waiver
FDA
LDT